All entries of the Fast & Furious franchise managed to haul in a decent amount of money at the box office but the 5th part really stood out, both in terms of revenue and quality. Fast & Furious 6 was able to top that and generated a worldwide box office of $789 million. Therefore, the studio's decision to order parts 7 and 8 was a no brainer. Since most fans should have been happy after leaving the cinemas, the home video releases should add a considerable amount to the studio's bank account. Just as it was handled with part 5, the Blu-ray of Fast Six does also include a slightly extended version. Here, mostly censorship for the PG-13 rating is reversed, additional CGI blood could not be identified. This version is available in the US on Blu-ray only, while customers of the DVD have to be satisfied with the theatrical version.

Comparison between the Theatrical Version (PG-13) and the Extended Cut (Unrated) (both included on the US Blu-ray by Universal Pictures).

Extended scene with alternate material0:39:26: The EX has a chauvinistic comment from the car manufacturerr when he sees Gisele and Riley approach him: "Who sent you? Oh come on, ladies! Two hot girls like you don't wander into this neighborhood unless I've called the escort service. And I haven't, yet, today.". The TC has them walking towards him in a different shot and as Roman tells Han that his opinion about Gisele's comment about men, we see him here. The EX only features that as a voice over while we see the grinning car guy.
The EX runs 16.64 sec. longer

Theatrical Version

Extended

Extended Scene0:44:32: Dom punches the guy in the face. The TC has the guy falling already.
0.44 sec.

Alternate Material0:44:47: As Dom pulls the pawnbroker violently towards the glass wall, the EX shows more clearly how his head hits the pane. The TC is more harmless because it shows that from the outside of the booth.
No time difference

Theatrical Version

Extended

Alternate Material0:45:06: After the pawnbroker gave up the necessary info, Dom pulls him against the pane again. The EX has the shot inside the booth, the TC observes it from the outside.
The TC runs 0.16 sec. longer

Theatrical Version

Extended

Alternate Material0:49:54: The EX has Jah countering an attempted punch by Han. He punches Han in the face instead. The TC only has him blocking Han's punch.
The EX runs 0.84 sec. longer

Theatrical Version

Extended

Extended scene with alternate material0:50:02: In the EX, Letty looks up and attacks Riley by strangling her with the handcuffs. Riley pushes Letty backwards against the wall and when Letty recognizes that the train is about to leave, she kicks Riley in the back of the knee, prompting her to fall to the ground. She then runs off to the train. In the TC, Letty looks up and Riley is already lying on the floor.
The EX runs 9.36 sec. longer

Theatrical Version

Extended

Alternate Material0:56:18: When Hobbs tells the boss of the CCTV office which reasons could be relevant for the fact that they don't have the recordings of certain cameras, both versions have a different take with a slightly different use of wording and camera shots. But that's all quite irrelevant.

TC: "Now that means either your maintenance schedule lines up perfectly with their escape route or that someone here is working with them."
EX: "Now that means either one of two things. It either means your maintenance schedule lines up perfectly with their escape route or it means that someone here is working with them."
The EX runs 0.88 sec. longer

Extended Scene0:59:51: A short dialogue between Dom and Han before the hook that Roman shot hits the wall. The TC has a different shot of Han.

Extended Scene1:04:00: Brian fights off Braga and his men a little longer by throwing kicks and punches. This includes the earlier shot where he punches Braga in the face.
3.84 sec.

Extended Scene1:04:12: More strangling action which leads to Brian suffering from a knee strike by his opponent.
3.2 sec.

Alternate Material1:04:18: The EX is a few frames longer as Brian twists his attacker's hand. The TC is earlier with a shot of their brawl. Looks like censorship.
The EX runs 0.16 sec. longer

Theatrical Version

Extended

Extended Scene1:04:22: Brian punches and kicks the inmate once more in the EX.
2.12 sec.

Alternate Material1:04:32: As Braga tells Brian that he wouldn't do it (use the knife on Braga), we see him finish the sentence onscreen in the EX, while the TC already switched to Brian. Maybe the goal was to shorten the shot of the bruised Braga in the TC.
No time difference